Printer&#39;s strip-material mold



UNHTED STATES PATENT OFFICE.

3031mm GRAY, or GLASGOW, SCOTLAND, ASSIGNOR T0 LANSTON MONOTYPE MACHINE COMPANY, or PHILADELPHIA, PENNSYLVANIA, A CORPORATION OF VIRGINIA.

To all whom it may concern:

Be it known that 1, ROBERT GRAY, a subject of the King of Great Britain, residing at 131 Kirkintilloch Road, Bishopbriggs, Glasgow, Scotland, have invented certain new and useful Improvements in Printers Strip-lVIaterial Molds; and I do hereby declare the following to be a full, clear, and

exact description of the same, reference being had to the accompanying drawings, forming. part of this specification, and to the characters of reference marked thereon.

This invention relates to molds-for the 2 production of printers strip material, such as rules, borders and similar elements of printers forms having ornamental, noncontinuous, interrupted or otherwise varied printing surfaces and has for its principal object to provide improved or simplified and eflicient mechanism for, producing this material in type or like metal.

An embodimentof he invention is shown in the accompanying drawings in which- Fig. 1 1s a plan view Fig. 2 is a longitudinal section, and a Fig. 3 is a detail of the design producing or a plurality of parallel lines according.

to the formative cavity of the particular matrix used. I

The present invention contemplates a mold of the type referred to or of any other suitable type for producing printers rules, embodying as a part of the mold structure a design producing device for altering or varying the single or parallel linerule produced by the matrix, whereby a non-continuous, interrupted or otherwise varied design may be produced. The line rule is thus transformed into what maybe called a fancy rule or border.

The casting elements of the mold in which the invention in its preferred form is incorporated and in connection'with' which, it will be described, are preferably cong Specification of Letters Patent.

PRINTERS STRIP-MATERIAL MOLD.

Patented May 2, 1922.

Application filed Ju1y19, 1919. Serial No. 311,933.

tain important parts will be referred to for identification purposes and for makin clear the disclosure of the Invention. efer ence characters corresponding with those of the patent will be used to refer to identical parts.

The casting elements comprise a base 3 with two upwardly extending portions 4 con-- nected across the top by two tie bars 5, se-

cured to the walls 4; by screws; and also side or typeblocks 8 and 9 between which a mold dimensioning and ejecting blade 27 The bottom, sides and one end reciprooates. wall of the mold cavity are formed by the base block 3, the side blocks 8 and c9 and themold blade 27 respectively. The side of said cavity opposite the mold blade is open for the ejection of the cast and this openmg is closed during casting bythe rear end of the previous cast of strip material. The

top of the cavity is closed by the matrix 21 held in position by suitable clamping mechanism. The cast strip 65 is ejected or fed forward by the advance of the mold blade 27 which is then retracted and a fresh charge of molten metal injected into the cavity,

In the preferred method of operation the incoming metal fuses that portion of the rear end of the previous cast which has been left to form the forward wall of the cavity, then congeals in union with said previous cast and in turn is fed forward by the next advance of the mold blade. Thus the repeated casting and feeding produces a fused increment strip which is intermittently fed from the mold. I After being cast and cooled each increment fed forwardly by the mold blade, enters an exit channel formed by an extension of the side blocks. The forward feeding of subsequent casts accomplishes the removal from the channel and to the exterior of the mold of preceding increments. A friction device or clamp operated by a screw 18 is provided for imposing a certain degree of resistance to the forward movement of the strip and for retaining the strip during casting in the position to which it has been fed. The screw 18 is conveniently operated by connecting it with a movable part of the machine y will have a printing face. in th f of continuous, single line 0 of a m of continuous, parallel lines. r

with which the mold is adapted to be used. The mold blade 27 is also connected with a part of such machine and the injection of molten; metal. through the nozzle 20 is ac-.

a groove or of parallel grooves is closed at one end and open at the exit end so that' the strip material can be fed forward to remove it from the cavity without m urmg the cast printing surface. On account of this ejecting. or removing operation, it will be' readily understood that the strip material According to the present'invention. a noncontinuous or interrupted design s given to the strip by means of the design producing] device in the form, asshown, of roller 41 havingthe design formed on its periphery and mounted over the channel throu h which thestrip material passes before its complete ejection from the mold. A suitable place for mounting this roller is, as shown, in the forwardtie bar so that the device operates upon the strip immediately subsequent to its removal from the casting cavity. The bar spindle 42 upon which the roller 41 isadapted to rotate in a cleft 43'op-en at the bot-. tom and of such width, shownparticularly in Fig. 3 as'to guide the roller and prevent it from moving laterally with respect to'the strip. The spindle 42 extends beyond the end. of the tie bar 5 and may be provided with a knurled head 44. Thespindle may' have a grooved portion 42 (Fig. 1) in proximity to the tie bar securing screw 45 so that when the spindle and roller have been as- 'sembled in the tie bar and the latter assembled 1n the mold, the securing screw 45 when inserted will enter the spindle groove 42 and maybe tightened without interfering K The latter, on the other hand, wlll be prevented from withdrawing with the spindle.

by contact of the walls of the groove 42 with the screw 45 and all securely locked 111 place.

The roller 41 in the present embodimentis 'designed and arranged to produce a strip having a printing surface consisting of a wide line bearing a series or successionof non-print1ng dots'so that the printed'prodnot would be white dots on a black band; fltj will, be understood of course that the design shown is illustrative merely, it being'evident that practically any desired design may be parts will be thus produced'by the mold. The penetration of the projections 41 alters such printing face by producing an interrupted or. non-continu ous pattern in the form of spaced circular depressions which do. not receive ink and' therefore do not PIlIlt. r

The operation of casting the strip proceeds'in the well known manner and there is nism the 'forwardftie bar 5 is removed from the mold, the spindle 42 is, withdrawn by the knurled head 44 and the roller 41 is allowed to drop out of the cleft 43. In assemblingthe roller is placed in the cleft, the

i I spindle inserted in the tie bar and through 5 IS'PI'OVlClGd with-a bore for 16C61'V1H0 the strip material embodying walls forminga cavity, for receiving molten metal, meansfor removing the cast metal from the cavity and design producing mechanism operative on av face of thecast' metal subsequent to itsre; mova'l from the said cavity.

2. A mold for producing printers fancy strip material embodying base and type blocks to form a cavity for receiving molten metal and an exit channel forward. of said cavity, means forfeeding the cast metal from the cavity into said channel and de-,'

sign producing mechanism mounted adja-.. cent to saidchannel to alter a face of the cast metal while in said channel.

A 'mold for producing printers fancy strip material embodying base and type blocks to form a cavity for receiving molten metal and an exit channel forward of said cavity, means for feeding the cast strip from the cavityv into and through said channel,

a wheel having a design formed on its periphery in position to engage with a face ofv said strip during its feeding movement to vfeeding the cast metal forwardly'fro-m said cavity and design producing mechanism mounted forwardly of said cavity to engage with the strip and be operated automatically thereby during the feeding movement of said strip to produce a design upon a face thereof.

5. A mold for producing printers fancy strip material embodying base and type blocks to form walls of a Cavity for receiving molten metal and an exit channel forward strip during its feeding movement through the channel to alter said face in accordance with said design. e

' 6. A mold for producing printers fancy strip material embodying walls forming a cavity for receiving molten metal, means for removing the cast strip from the cavity, a stationary matrix forming one wall of the cavity, said matrix being constructed to produce on one face of the strip a line printing surface, and design producing mechanism' operative on said printing surface subsequent to the removal of the strip from the cavity to alter the cast printing surface thereof.

,7. The combination with a monotype mold, of a roller having a design on the periphery thereof and arranged to'engage with and roll upon a bar of type metal as it issues from the monotype mold. I

8. The combination with a monotype mold, of a roller having a design upon the periphery thereof and arranged to roll upon a bar of type metal cast in said mold.

9. In the art of casting a bar of type metal, the method of casting a bar having a design upon one edge thereof and subsequently passing the bar in contact with the roller having a design on the periphery thereof for changing the design on the edge of the bar of type metal.

' OBERT GRAY. 

